Announced on XSEED Games Twitter, Corpse Party is making it's way to Europe on PSN (no UMD release in both USA and EUR)

Here's a bit about Corpse Party:
It's a SNES styled game that focuses on a haunted elementary school where you have to solve the mystery around the murders of children over the years. It has a 3D sound effect so headphones are really a must, there are no 'Game Over' screens and everything you do (walking into a room instead of walking down the hall) will change the outcome. Seriously, watch the trailer. Now.

Also Tom from XSEED posted a little bit more about what kind of party it is up on the US Playstation.Blog